Potential antitumor agents. 62. Structure-activity relationships for tricyclic compounds related to the colon tumor active drug 9-oxo-9H-xanthene-4-acetic acid
作者:Gordon W. Rewcastle、Graham J. Atwell、Brian D. Palmer、Peter D. W. Boyd、Bruce C. Baguley、William A. Denny
DOI:10.1021/jm00106a003
日期:1991.2
molecular dipole moment lay out of the plane of the aromatic part of these molecules was found to be determined largely by the contributions from the acetic acid moiety relative to that from the tricyclic ring system. There did not appear to be any general relationship between the magnitude of the dipole moment and activity. However, for compounds containing the 9-carbonyl functionality, the orientation
已经制备了一系列9-氧代-9H-氧杂蒽-4-乙酸的三环类似物,并评估了它们在小鼠皮下植入的结肠38肿瘤中引起出血性坏死的能力,以期扩展其结构-活性关系。这个系列。如先前在黄酮8-乙酸(FAA)的类似物中所发现的(Atwell等人,Anti-Cancer Drug Des。1989,4,161),XAA核的所有电子修饰均导致活性的严重降低或完全取消。 ,表明结构-活性关系狭窄。计算了许多化合物的偶极矩,发现分子偶极矩离开这些分子芳族部分平面的程度很大程度上取决于乙酸部分相对于乙酸部分的贡献。三环系统。偶极矩的大小与活动之间似乎没有任何一般的关系。但是,对于含有9-羰基官能团的化合物,偶极向量的方向可能很重要。在所有具有位于乙酸侧链周围的醚基的化合物中,该化合物与侧链OH之间存在接近的途径(约2.4 A)。
[DE] NEUE XANTHINDERIVATE, DEREN HERSTELLUNG UND DEREN VERWENDUNG ALS ARZNEIMITTEL<br/>[EN] NOVEL XANTHINE DERIVATIVES, THE PRODUCTION AND THE USE THEREOF IN THE FORM OF DRUGS<br/>[FR] NOUVEAUX DERIVES DE XANTHINE, LEUR PRODUCTION ET LEUR UTILISATION COMME MEDICAMENTS
申请人:BOEHRINGER INGELHEIM PHARMA
公开号:WO2004041820A1
公开(公告)日:2004-05-21
Die vorliegende Erfindung betrifft substituierte Xanthine der allgemeinen Formel (I), in der R1 bis R4 wie in Anspruch 1 definiert sind, deren Tautomere, deren Stereoisomere, deren Gemische, deren Prodrugs und deren Salze, welche wertvolle pharmakologische Eigenschaften aufweisen, insbesondere eine Hemmwirkung auf die Aktivität des Enzyms Dipeptidylpeptidase-IV (DPP-IV).
A chemistry matrix for use in determining the concentration of an analyte in a biological fluid includes a glucose dehydrogenase, nicotinamide adenine dinucleotide, an alkylphenazine quaternary salt, and/or a nitrosoaniline. The chemistry matrix is used with an electrochemical biosensor to determine the concentration of an analyte after a reaction occurs within the biosensor, at which time an analysis is completed to determine the concentration. A method of determining the concentration of an analyte using the chemistry matrix of glucose dehydrogenase, nicotinamide adenine dinucleotide, an alkylphenazine quaternary salt, and/or a nitrosoaniline is another aspect that is described. The method also further features test times of five seconds or less. Methods utilizing the new chemistry matrix can readily determine an analyte such as blood glucose at concentrations of from about 20-600 mg/dL at a pH of from about 6.5 to about 8.5.